Updating the workflow file for pre-checking

Author: actions-user

.github/workflows/red-gcp-pre-pull-deployment-checks.yml

@@ -287,7 +287,7 @@ jobs:
           project_id = "red-101"
           machine_type = "n2-standard-16"
           desired_capacity = ${{ env.DESIRED_CAPACITY }}
-          num_infinia_instances = ${INFINIA_INSTANCES}
+          num_infinia_instances = "${{INFINIA_INSTANCES }}"
           num_clients = ${{ env.NUM_CLIENTS }}
           #local_disks = 4
           pd_disk_size = 64